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arXiv quant-ph/0510124quant-phmath-phmath.MP
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Angular Momentum与互无偏基

Angular Momentum and Mutually Unbiased Bases

M. R. Kibler

摘要:

群SU(2)的李代数是由两个变形振子代数构造而成的,其中变形参数是单位根。这导致不寻常的量化方案,{J2,Ur}方案,熟悉的{J2,Jz}量化方案的替代方案,对应于Casimir算子J2和Cartan算子Jz的公共本征向量。建立了交换算子完备集{J2,Ur}的本征向量与常角动量空间中的互无偏基之间的联系。

英文摘要:

The Lie algebra of the group SU(2) is constructed from two deformed oscillator algebras for which the deformation parameter is a root of unity. This leads to an unusual quantization scheme, the {J2,Ur} scheme, an alternative to the familiar {J2,Jz} quantization scheme corresponding to common eigenvectors of the Casimir operator J2 and the Cartan operator Jz. A connection is established between the eigenvectors of the complete set of commuting operators {J2,Ur} and mutually unbiased bases in spaces of constant angular momentum.

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